Means for producing parallel slits in fabrics



May 27, 1924. 1,495,490

- I 1.. KRAUSE MEANS FOR PRODUCING PARALLEL SLITS IN FABRICS Filed March 291" 1922 s Sheets-Sheet. 1

IHIIIHIHIIIHHIHI J A INVENTORLI ATTORNEY L. KRAUSE MEANS FOR PRODUCING PARALLEL SLITS IN FABRICS Filed March 29, 1922 5 Sheets-$heet 2 A TTORNE Y INVENTOR Kim 14 May 21,, 1 24.v 1,495,490

L. KRAUSE- MEANS FOR PRODUCING PARALLEL SLITS IN FABRICS Filed March 29, 192 '13 Sheets-Sheet 5 11v VENTOR A ATTORNEY Patented May 27, 1924.

warren stares PATENT @FFEQE.

LOU KRAUSE, OF NEW YORK, N. Y., ASSIGNOR TO SLYT EDGE COMPANY, INC, A COR- PORATION OF NEW YORK.

MEANS FOR PRODUCING PARALLEL SLITS IN FABRICS.

Application filed March 29, 1922. Serial No. 547,930.

To all 107mm may concern.

Be it. known that I, Loo KnAUsE, a citizen of the United States, residing at 603 Broadway, in the city ofNew York, and State of New York, have invented a new and useful Improvement in a Means for Producing Parallel Slits in Fabrics, of which the following is a specification.

The object of this invention is to provide simple and efficient means for producing a series of substantially parallel slits in softfelt or other fabric, the invention being more particularly designed for performing one of the steps in the process of my Patent No. 1,459,472 of June 19, 1928 for producing a pointed fringe on the brims of womens hats or elsewhere.

In the accompanying drawings forming a part hereof:

Fig. 1 is a front elevation of the machine;

Fig. 2 is an end elevation;

Fig. 3 is a sectional plan on the line 33 of Fig. 1; and

F 4. is a fragmentary .view of the edge portion of a piece of material slitted on the machine.

The drawings show an ordinary sewing machine which has been modified by simple attachments to perform the work in view. The mechanism of such a sewing machine being well known does not require detailed description.

1 is the frame of the machine, 2 the table or platen, 3 is a bar corresponding to the ordinary needle-bar which is reciprocated up and down in the head a by familiar means, and 5 designates generally an ordinary feed, 6 being the feed member and 7 the adjuster for the feed. A presser-foot bar 8 is also vertically guided in the head a and can be raised and lowered by ordinary means 9.

The bar 3 is slotted at the lower end for the reception of a knife-blade 10, which is secured by a screw 11 and has a bottom cutting edge 12 of substantial length. A suitable slot in the table accommodates the blade when it is forced downward through the material.

The presser-foot bar 8 is provided with a special presser-foot 13 having an expanded surface to bear upon the material. and formed with a slot 14 to permit the passage of the knife.

At one side of the knife and presser-foot, on the table, is a gage 15, which can be set at varying degrees of proximity to the knife by virtue of a slotted extension 16 and a setscrew 17.

In operation the material is fed along by the feed between the presser-foot and the table and beneath the reciprocating knife in the same manner that material is fed through a sewing machine, and the knife moving into and out of the material pro duces a series of substantially parallel adjacent slits a inwardly of the edge 1 as shown in Fig. 4;, the spacing of the slits from each other being determined by the adjustment of the feed. As the material is advanced its extreme edge is kept in contact with the gage 15, which determines the width of the narrow unslitted margin 7).

What is claimed as new is:

1. In a machine for forming parallel slits in fabric, the combination with a table and a presser foot having aligned slots therein, a reciprocating'knife working through said slots and clearing the fabric at each recipro cation, and a material feed operable upon the reciprocation of said knife to advance the material across said table in a line normal to the slots.

2. In a machine for forming spaced cuts in felt, the combination with a table and a prcsser foot having aligned slots therein, a

reciprocating knife working through said slots and clearing the felt at each reciprocation, and a material feed operable upon the reciprocation of said knife to advance the material across said table intermittently.

LOU KRAUSE. 

